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/*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
* Copyright (c) 2015-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <assert.h>
#include <stdio.h>
#include <stdint.h>
#include <signal.h>
#include <time.h>
#include <sys/time.h>
int
main(void)
{
#if defined __x86_64__ && defined __ILP32__
/*
* x32 is broken from the beginning:
* https://lkml.org/lkml/2015/11/30/790
*/
error_msg_and_skip("x32 is broken");
#else
const sigset_t set = {};
const struct sigaction act = { .sa_handler = SIG_IGN };
const struct itimerval itv = { .it_value.tv_usec = 111111 };
struct timespec req = { .tv_nsec = 222222222 }, rem;
assert(sigaction(SIGALRM, &act, NULL) == 0);
assert(sigprocmask(SIG_SETMASK, &set, NULL) == 0);
if (setitimer(ITIMER_REAL, &itv, NULL))
perror_msg_and_skip("setitimer");
if (nanosleep(&req, &rem))
perror_msg_and_fail("nanosleep");
printf("nanosleep\\(\\{tv_sec=%lld, tv_nsec=%llu\\}"
", \\{tv_sec=%lld, tv_nsec=%llu\\}\\)"
" = \\? ERESTART_RESTARTBLOCK \\(Interrupted by signal\\)\n",
(long long) req.tv_sec, zero_extend_signed_to_ull(req.tv_nsec),
(long long) rem.tv_sec, zero_extend_signed_to_ull(rem.tv_nsec));
puts("--- SIGALRM \\{si_signo=SIGALRM, si_code=SI_KERNEL\\} ---");
#ifdef __arm__
/* old kernels used to overwrite ARM_r0 with -EINTR */
# define ALTERNATIVE_NANOSLEEP_REQ "0xfffffffc|"
#else
# define ALTERNATIVE_NANOSLEEP_REQ ""
#endif
printf("(nanosleep\\((%s\\{tv_sec=%lld, tv_nsec=%llu\\})"
", %p|restart_syscall\\(<\\.\\.\\."
" resuming interrupted nanosleep \\.\\.\\.>)\\) = 0\n",
ALTERNATIVE_NANOSLEEP_REQ,
(long long) req.tv_sec, zero_extend_signed_to_ull(req.tv_nsec),
&rem);
puts("\\+\\+\\+ exited with 0 \\+\\+\\+");
return 0;
#endif
}
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